Various errors when trying to use GLPI 11 RC5 webhooks

[lucaslevi-consultor-glpi]

Code of Conduct

• I agree to follow this project's Code of Conduct

Is there an existing issue for this?

• I have searched the existing issues

Version

GLPI 11 RC5

Bug description

Good afternoon everyone, I ran some tests sending call data to an n8n webhook post to see what data would come through, but errors occurred in both attempts. In the first attempt, I tried the new call event, and in the second, the new follow-up , and in both cases, I got this error message:

Some errors appeared in the logs (I'll leave them below).

When I returned to the created webhook, it also displayed an error screen.

In the last test, I saw that there is a button to test the result of the event from a call, which also gave an error in the logs (I will leave it below).

I also noticed that the event was not created in the webhook queue and the webhook cron is running normally every minute.

Relevant log output

Errors that occurred when attempting to send call data (new call and new follow-up) : 

lpi.CRITICAL:   *** Uncaught PHP Exception TypeError: "Webhook::getWebhookBody(): Argument #2 ($api_data) must be of type array, null given, called in ./src/Webhook.php on line 1159" at Webhook.php line 518
  Backtrace :
  ./src/Webhook.php:518                              
  ./src/Webhook.php:1159                             Webhook->getWebhookBody()
  ./src/CommonDBTM.php:1430                          Webhook::raise()
  ./front/ticket.form.php:78                         CommonDBTM->add()
  ...Glpi/Controller/LegacyFileLoadController.php:63 require()
  ./vendor/symfony/http-kernel/HttpKernel.php:181    Glpi\Controller\LegacyFileLoadController->__invoke()
  ./vendor/symfony/http-kernel/HttpKernel.php:76     Symfony\Component\HttpKernel\HttpKernel->handleRaw()
  ./vendor/symfony/http-kernel/Kernel.php:197        Symfony\Component\HttpKernel\HttpKernel->handle()
  ./public/index.php:70                              Symfony\Component\HttpKernel\Kernel->handle()

glpi.WARNING:   *** Warning: Undefined array key "parent" at Webhook.php line 922
  Backtrace :
  ./src/Webhook.php:922                              
  ./src/Webhook.php:941                              Webhook::getAPISchemaBySupportedItemtype()
  ./ajax/webhook.php:173                             Webhook::getMonacoSuggestions()
  ...Glpi/Controller/LegacyFileLoadController.php:63 require()
  ./vendor/symfony/http-kernel/HttpKernel.php:181    Glpi\Controller\LegacyFileLoadController->__invoke()
  ./vendor/symfony/http-kernel/HttpKernel.php:76     Symfony\Component\HttpKernel\HttpKernel->handleRaw()
  ./vendor/symfony/http-kernel/Kernel.php:197        Symfony\Component\HttpKernel\HttpKernel->handle()
  ./public/index.php:70                              Symfony\Component\HttpKernel\Kernel->handle()

glpi.WARNING:   *** Warning: Trying to access array offset on value of type null at Webhook.php line 922
  Backtrace :
  ./src/Webhook.php:922                              
  ./src/Webhook.php:941                              Webhook::getAPISchemaBySupportedItemtype()
  ./ajax/webhook.php:173                             Webhook::getMonacoSuggestions()
  ...Glpi/Controller/LegacyFileLoadController.php:63 require()
  ./vendor/symfony/http-kernel/HttpKernel.php:181    Glpi\Controller\LegacyFileLoadController->__invoke()
  ./vendor/symfony/http-kernel/HttpKernel.php:76     Symfony\Component\HttpKernel\HttpKernel->handleRaw()
  ./vendor/symfony/http-kernel/Kernel.php:197        Symfony\Component\HttpKernel\HttpKernel->handle()
  ./public/index.php:70                              Symfony\Component\HttpKernel\Kernel->handle()

glpi.CRITICAL:   *** Uncaught PHP Exception TypeError: "Illegal offset type" at Webhook.php line 956
  Backtrace :
  ./src/Webhook.php:956                              
  ./ajax/webhook.php:173                             Webhook::getMonacoSuggestions()
  ...Glpi/Controller/LegacyFileLoadController.php:63 require()
  ./vendor/symfony/http-kernel/HttpKernel.php:181    Glpi\Controller\LegacyFileLoadController->__invoke()
  ./vendor/symfony/http-kernel/HttpKernel.php:76     Symfony\Component\HttpKernel\HttpKernel->handleRaw()
  ./vendor/symfony/http-kernel/Kernel.php:197        Symfony\Component\HttpKernel\HttpKernel->handle()
  ./public/index.php:70                              Symfony\Component\HttpKernel\Kernel->handle()

_________________________________________________________

When I attempted to test the event manually within the configuration of the created event:

glpi.CRITICAL:   *** Uncaught PHP Exception TypeError: "Webhook::getWebhookBody(): Argument #2 ($api_data) must be of type array, null given, called in ./src/Webhook.php on line 654" at Webhook.php line 518
  Backtrace :
  ./src/Webhook.php:518                              
  ./src/Webhook.php:654                              Webhook->getWebhookBody()
  ./ajax/webhook.php:137                             Webhook->getResultForPath()
  ...Glpi/Controller/LegacyFileLoadController.php:63 require()
  ./vendor/symfony/http-kernel/HttpKernel.php:181    Glpi\Controller\LegacyFileLoadController->__invoke()
  ./vendor/symfony/http-kernel/HttpKernel.php:76     Symfony\Component\HttpKernel\HttpKernel->handleRaw()
  ./vendor/symfony/http-kernel/Kernel.php:197        Symfony\Component\HttpKernel\HttpKernel->handle()
  ./public/index.php:70                              Symfony\Component\HttpKernel\Kernel->handle()

Page URL

/front/webhook.form.php?

Steps To reproduce

1. Use GLPI 11 rc5
2. Activate a webhook with some type of event (new follow-up, new call, etc.)
3. Define the Post URL that will receive the call data
4. The expected result would be for the webhook to be sent with the ticket data

Your GLPI setup information

GLPI information

GLPI: 11.0.0-rc5 ( => /var/www/opentime/glpi_11provadefogo)
Installation mode: TARBALL
Current language: pt_BR

Server

Operating system: Linux GLPIAPRESENTACAO 6.14.8-2-pve #​1 SMP PREEMPT_DYNAMIC PMX 6.14.8-2 (2025-07-22T10:04Z) x86_64
PHP: 8.2.29 apache2handler
PHP extensions: Core, date, libxml, openssl, pcre, zlib, filter, hash, json, random, Reflection, SPL, session, standard, sodium,

apache2handler, mysqlnd, PDO, xml, bcmath, bz2, calendar, ctype, curl, dom, mbstring, FFI, fileinfo, ftp, gd, gettext, iconv,

intl, ldap, exif, mysqli, pdo_mysql, Phar, posix, readline, shmop, SimpleXML, sockets, sysvmsg, sysvsem, sysvshm, tokenizer,

xmlreader, xmlwriter, xsl, zip, Zend OPcache
Setup: disable_functions="" max_execution_time="30" max_input_vars="1000" memory_limit="128M" post_max_size="8M"

session.cookie_secure="0" session.cookie_httponly="1" session.cookie_samesite="" session.save_handler="files"

upload_max_filesize="2M"
Web server: Apache/2.4.52 (Ubuntu) (Apache/2.4.52 (Ubuntu) Server at bateriadetestesglpi11.llconsultorias.com.br Port 80)
User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36
Database:
Server Software: Ubuntu 22.04
Server Version: 10.6.22-MariaDB-0ubuntu0.22.04.1
Server SQL Mode: STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
Parameters: glpi_ot_user@localhost/glpi_11provadefogo
Host info: Localhost via UNIX socket
Requirements:

PHP version (8.2.29) is supported.

OS and PHP are relying on 64 bits integers.

Sessions configuration is OK.

Allocated memory is sufficient.

Following extensions are installed: dom, fileinfo, filter, libxml, simplexml, tokenizer, xmlreader,

xmlwriter.

mysqli extension is installed

curl extension is installed

gd extension is installed

intl extension is installed

mbstring extension is installed

zlib extension is installed

bcmath extension is installed

The constant

SODIUM_CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NPUBBYTES is present.

openssl extension is installed

Database engine version (10.6.22) is

supported.

The log file has been created successfully.

Write access to

/var/www/opentime/glpi_11provadefogo/files/_cache has been validated.

Write access to /var/www/opentime/glpi_11provadefogo/files/_cron has been validated.

Write access to /var/www/opentime/glpi_11provadefogo/files has been validated.

Write access to /var/www/opentime/glpi_11provadefogo/files/_graphs has been validated.

Write access to /var/www/opentime/glpi_11provadefogo/files/_lock has been validated.

Write access to /var/www/opentime/glpi_11provadefogo/files/_pictures has been validated.

Write access to /var/www/opentime/glpi_11provadefogo/files/_plugins has been validated.

Write access to /var/www/opentime/glpi_11provadefogo/files/_rss has been validated.

Write access to /var/www/opentime/glpi_11provadefogo/files/_sessions has been validated.

Write access to /var/www/opentime/glpi_11provadefogo/files/_tmp has been validated.

Write access to /var/www/opentime/glpi_11provadefogo/files/_uploads has been validated.
Sessions configuration is secured.

exif extension is installed

ldap extension is installed

Following extensions are installed: bz2,

Phar, zip.

Zend OPcache extension is installed

Following extensions are installed:

ctype, iconv, sodium.

Write

access to /var/www/opentime/glpi_11provadefogo/marketplace has been validated.

Timezones seems loaded in database.

GLPI constants

GLPI_ROOT: "/var/www/opentime/glpi_11provadefogo"

GLPI_VERSION: "11.0.0-rc5"

GLPI_SCHEMA_VERSION: "11.0.0-rc5@ea2dbba0e1edbf5128d73bdb23c2c9b9f68468ba"

GLPI_FILES_VERSION: "11.0.0-rc5-e7e0925b"

GLPI_MIN_PHP: "8.2"

GLPI_MAX_PHP: "8.5"

GLPI_YEAR: "2025"

GLPI_I18N_DIR: "/var/www/opentime/glpi_11provadefogo/locales"

GLPI_ENVIRONMENT_TYPE: "production"

GLPI_CONFIG_DIR: "/var/www/opentime/glpi_11provadefogo/config"

GLPI_VAR_DIR: "/var/www/opentime/glpi_11provadefogo/files"

GLPI_MARKETPLACE_DIR: "/var/www/opentime/glpi_11provadefogo/marketplace"

GLPI_ALLOW_IFRAME_IN_RICH_TEXT: false

GLPI_SERVERSIDE_URL_ALLOWLIST: ["^\n                        (http|https|feed)://

# protocol\n                        (\n                            (?:\n

(?:xn--[a-z0-9-]++\.)*+xn--[a-z0-9-]++                      # a domain name using punycode\n

|\n                                (?:[\pL\pN\pS\pM\-\]++\.)+[\pL\pN\pM]++                    # a multi-level domain

name\n                                    |\n                                [a-z0-9\-\]++

# a single-level domain name\n                            )\.?\n                                |

# or\n                            \d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}

# an IP address\n                                |                                                           #

or\n                            \[\n

(?:(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){6})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:::(?:(?:(?:[0-9a-f]{1,4})):){5})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:[0-9a-f]{1,4})))?::(?:(?:(?:[0-9a-f]{1,4})):){4})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,1}(?:(?:[0-9a-f]{1,4})))?::(?:(?:(?:[0-9a-f]{1,4})):){3})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,2}(?:(?:[0-9a-f]{1,4})))?::(?:(?:(?:[0-9a-f]{1,4})):){2})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,3}(?:(?:[0-9a-f]{1,4})))?::(?:(?:[0-9a-f]{1,4})):)(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,4}(?:(?:[0-9a-f]{1,4})))?::)(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,5}(?:(?:[0-9a-f]{1,4})))?::)(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,6}(?:(?:[0-9a-f]{1,4})))?::))))\n

\]                                                              # an IPv6 address\n

)\n                        (?:/ (?:[\pL\pN\pS\pM\-._\!$&'()+,;=:@]|%[0-9A-Fa-f]{2}) )*     # a path\n

(?:\? (?:[\pL\pN\-._\~!$&'\\+,;=:@/?]|%[0-9A-Fa-f]{2}) )?    # a query (optional)\n

$~ixuD"]

GLPI_DISALLOWED_UPLOADS_PATTERN: "/\.(php\d*|phar)$/i"

GLPI_TELEMETRY_URI: "https://telemetry.glpi-project.org"

GLPI_INSTALL_MODE: "TARBALL"

GLPI_NETWORK_MAIL: "glpi@teclib.com"

GLPI_NETWORK_SERVICES: "https://services.glpi-network.com"

GLPI_MARKETPLACE_ENABLE: 3

GLPI_MARKETPLACE_PRERELEASES: true

GLPI_MARKETPLACE_ALLOW_OVERRIDE: true

GLPI_MARKETPLACE_MANUAL_DOWNLOADS: true

GLPI_USER_AGENT_EXTRA_COMMENTS: ""

GLPI_DOCUMENTATION_ROOT_URL: "https://links.glpi-project.org"

GLPI_DISABLE_ONLY_FULL_GROUP_BY_SQL_MODE: "1"

GLPI_LOG_LVL: "warning"

GLPI_SKIP_UPDATES: false

GLPI_STRICT_ENV: false

GLPI_AJAX_DASHBOARD: "1"

GLPI_CALDAV_IMPORT_STATE: 0

GLPI_CENTRAL_WARNINGS: "1"

GLPI_SYSTEM_CRON: false

GLPI_TEXT_MAXSIZE: "4000"

GLPI_WEBHOOK_ALLOW_RESPONSE_SAVING: "0"

GLPI_WEBHOOK_CRA_MANDATORY: false

GLPI_ALTCHA_MODE: "interactive"

GLPI_ALTCHA_MAX_NUMBER: 50000

GLPI_ALTCHA_EXPIRATION_INTERVAL: "PT20M"

GLPI_DOC_DIR: "/var/www/opentime/glpi_11provadefogo/files"

GLPI_CACHE_DIR: "/var/www/opentime/glpi_11provadefogo/files/_cache"

GLPI_CRON_DIR: "/var/www/opentime/glpi_11provadefogo/files/_cron"

GLPI_GRAPH_DIR: "/var/www/opentime/glpi_11provadefogo/files/_graphs"

GLPI_LOCAL_I18N_DIR: "/var/www/opentime/glpi_11provadefogo/files/_locales"

GLPI_LOCK_DIR: "/var/www/opentime/glpi_11provadefogo/files/_lock"

GLPI_LOG_DIR: "/var/www/opentime/glpi_11provadefogo/files/_log"

GLPI_PICTURE_DIR: "/var/www/opentime/glpi_11provadefogo/files/_pictures"

GLPI_PLUGIN_DOC_DIR: "/var/www/opentime/glpi_11provadefogo/files/_plugins"

GLPI_RSS_DIR: "/var/www/opentime/glpi_11provadefogo/files/_rss"

GLPI_SESSION_DIR: "/var/www/opentime/glpi_11provadefogo/files/_sessions"

GLPI_TMP_DIR: "/var/www/opentime/glpi_11provadefogo/files/_tmp"

GLPI_UPLOAD_DIR: "/var/www/opentime/glpi_11provadefogo/files/_uploads"

GLPI_INVENTORY_DIR: "/var/www/opentime/glpi_11provadefogo/files/_inventories"

GLPI_THEMES_DIR: "/var/www/opentime/glpi_11provadefogo/files/_themes"

GLPI_PLUGINS_DIRECTORIES:

["/var/www/opentime/glpi_11provadefogo/marketplace","/var/www/opentime/glpi_11provadefogo/plugins"]

GLPI_NETWORK_REGISTRATION_API_URL: "https://services.glpi-network.com/api/registration/"

GLPI_MARKETPLACE_PLUGINS_API_URI: "https://services.glpi-network.com/api/marketplace/"

Diretórios LDAP

Server: '172.20.1.150',

Port: '389',

BaseDN: 'DC=demoll, DC=local',

Connection filter: '(&(objectClass=user)(objectCategory=person))',

RootDN: 'glpicoleta@demoll.local',

Use TLS: none

Réplicas SQL

Not active

Notifications

Way of sending emails: SMTP(smtp://glpi1%40llconsultorias.com.br:********@carbonio.npsolucoesinfo.com.br:587)

Name: 'glpi1@llconsultorias.com.br testes glpi 11 Lab'

Active: No

Server: '{carbonio.npsolucoesinfo.com.br:993/imap/ssl/notls}'

Login: 'glpi1@llconsultorias.com.br'

Password: Yes

Plugins list

datainjection        Name: Data injection                 Version: 2.15.0-beta2 State: Instalado / não ativado

Install Method: Marketplace

glpiinventory        Name: GLPI Inventory                 Version: 1.6.0-beta1 State: Habilitado

Install Method: Marketplace

tag                  Name: Tag Management                 Version: 2.13.0-beta5 State: Habilitado

Install Method: Marketplace

Anything else?

No response

[froozeify]

Hello, the warnings and critical Uncaught PHP Exception TypeError: "Illegal offset type" will be fixed in #21181

I couldn't reproduce the issue with critical ($api_data) must be of type array, null given (your first error in the output)

Do you have more information on how to reproduce it ?

I've tried creating a webhook on new ITILFollowup and I don't get that error.
Did you created a custom payload ?

[lucaslevi-consultor-glpi]

@froozeify Hello, no, I used the default load that it creates. I tried both new tracking and left ‘new event’ and also new call and new solution in version 11 RC5.

I want to emphasize that in this case, the environment I am using was GLPI version 10, which I updated to the new version 11. I don't know if this is relevant.

[lucaslevi-consultor-glpi]

New test on 09/29

I created a notification for a new follow-up

Error within the call when I added the tracking:

Errors that appear in the log regarding this event:

---

glpi.WARNING: *** Warning: Undefined array key "parent" at Webhook.php line 922
Backtrace :
./src/Webhook.php:922
./src/Webhook.php:941 Webhook::getAPISchemaBySupportedItemtype()
./ajax/webhook.php:173 Webhook::getMonacoSuggestions()
...Glpi/Controller/LegacyFileLoadController.php:63 require()
./vendor/symfony/http-kernel/HttpKernel.php:181 Glpi\Controller\LegacyFileLoadController->__invoke()
./vendor/symfony/http-kernel/HttpKernel.php:76 Symfony\Component\HttpKernel\HttpKernel->handleRaw()
./vendor/symfony/http-kernel/Kernel.php:197 Symfony\Component\HttpKernel\HttpKernel->handle()
./public/index.php:70 Symfony\Component\HttpKernel\Kernel->handle()

---

glpi.WARNING: *** Warning: Undefined array key "parent" at Webhook.php line 922
Backtrace :
./src/Webhook.php:922
./src/Webhook.php:941 Webhook::getAPISchemaBySupportedItemtype()
./ajax/webhook.php:173 Webhook::getMonacoSuggestions()
...Glpi/Controller/LegacyFileLoadController.php:63 require()
./vendor/symfony/http-kernel/HttpKernel.php:181 Glpi\Controller\LegacyFileLoadController->__invoke()
./vendor/symfony/http-kernel/HttpKernel.php:76 Symfony\Component\HttpKernel\HttpKernel->handleRaw()
./vendor/symfony/http-kernel/Kernel.php:197 Symfony\Component\HttpKernel\HttpKernel->handle()
./public/index.php:70 Symfony\Component\HttpKernel\Kernel->handle()

---

glpi.WARNING: *** Warning: Undefined array key "" at Webhook.php line 922
Backtrace :
./src/Webhook.php:922
./src/Webhook.php:941 Webhook::getAPISchemaBySupportedItemtype()
./ajax/webhook.php:173 Webhook::getMonacoSuggestions()
...Glpi/Controller/LegacyFileLoadController.php:63 require()
./vendor/symfony/http-kernel/HttpKernel.php:181 Glpi\Controller\LegacyFileLoadController->__invoke()
./vendor/symfony/http-kernel/HttpKernel.php:76 Symfony\Component\HttpKernel\HttpKernel->handleRaw()
./vendor/symfony/http-kernel/Kernel.php:197 Symfony\Component\HttpKernel\HttpKernel->handle()
./public/index.php:70 Symfony\Component\HttpKernel\Kernel->handle()

---

glpi.WARNING: *** Warning: Undefined array key "" at Webhook.php line 922
Backtrace :
./src/Webhook.php:922
./src/Webhook.php:941 Webhook::getAPISchemaBySupportedItemtype()
./ajax/webhook.php:173 Webhook::getMonacoSuggestions()
...Glpi/Controller/LegacyFileLoadController.php:63 require()
./vendor/symfony/http-kernel/HttpKernel.php:181 Glpi\Controller\LegacyFileLoadController->__invoke()
./vendor/symfony/http-kernel/HttpKernel.php:76 Symfony\Component\HttpKernel\HttpKernel->handleRaw()
./vendor/symfony/http-kernel/Kernel.php:197 Symfony\Component\HttpKernel\HttpKernel->handle()
./public/index.php:70 Symfony\Component\HttpKernel\Kernel->handle()

---

lpi.WARNING: *** Warning: Trying to access array offset on value of type null at Webhook.php line 922
Backtrace :
./src/Webhook.php:922
./src/Webhook.php:941 Webhook::getAPISchemaBySupportedItemtype()
./ajax/webhook.php:173 Webhook::getMonacoSuggestions()
...Glpi/Controller/LegacyFileLoadController.php:63 require()
./vendor/symfony/http-kernel/HttpKernel.php:181 Glpi\Controller\LegacyFileLoadController->__invoke()
./vendor/symfony/http-kernel/HttpKernel.php:76 Symfony\Component\HttpKernel\HttpKernel->handleRaw()
./vendor/symfony/http-kernel/Kernel.php:197 Symfony\Component\HttpKernel\HttpKernel->handle()
./public/index.php:70 Symfony\Component\HttpKernel\Kernel->handle()

---

glpi.CRITICAL: *** Uncaught PHP Exception TypeError: "Illegal offset type" at Webhook.php line 956
Backtrace :
./src/Webhook.php:956
./ajax/webhook.php:173 Webhook::getMonacoSuggestions()
...Glpi/Controller/LegacyFileLoadController.php:63 require()
./vendor/symfony/http-kernel/HttpKernel.php:181 Glpi\Controller\LegacyFileLoadController->__invoke()
./vendor/symfony/http-kernel/HttpKernel.php:76 Symfony\Component\HttpKernel\HttpKernel->handleRaw()
./vendor/symfony/http-kernel/Kernel.php:197 Symfony\Component\HttpKernel\HttpKernel->handle()
./public/index.php:70 Symfony\Component\HttpKernel\Kernel->handle()

---

glpi.CRITICAL: *** Uncaught PHP Exception TypeError: "Webhook::getWebhookBody(): Argument #2 ($api_data) must be of type array, null given, called in ./src/Webhook.php on line 1159" at Webhook.php line 518
Backtrace :
./src/Webhook.php:518
./src/Webhook.php:1159 Webhook->getWebhookBody()
./src/CommonDBTM.php:1430 Webhook::raise()
./front/itilfollowup.form.php:58 CommonDBTM->add()
...Glpi/Controller/LegacyFileLoadController.php:63 require()
./vendor/symfony/http-kernel/HttpKernel.php:181 Glpi\Controller\LegacyFileLoadController->__invoke()
./vendor/symfony/http-kernel/HttpKernel.php:76 Symfony\Component\HttpKernel\HttpKernel->handleRaw()
./vendor/symfony/http-kernel/Kernel.php:197 Symfony\Component\HttpKernel\HttpKernel->handle()
./public/index.php:70 Symfony\Component\HttpKernel\Kernel->handle()

[lucaslevi-consultor-glpi]

After the error occurs when returning to the webhook event I created, I can no longer navigate through the tabs; this message appears on all of them.

[lucaslevi-consultor-glpi]

Guys, there was a mistake on my part. I left the webhook in glpi as Post, but in n8n it was as get. It should have reported the error better and not crashed the screen, so maybe that needs to be improved.

When I left the GLPI webhook as POST and the n8n webhook as well, it sent as shown in the image, but the return is coming back empty. Could it be another problem? I didn't touch the body of the message, I left the default payload.

[froozeify]

The issues you've reported will be fixed in #21181 once deployed you'll be able to update your webhook settings and change it's payload.

[lucaslevi-consultor-glpi]

@froozeify Great, I'll wait for the release tomorrow to do another test. Thank you for your continued attention.